Toxicity of Insecticides in Duponchelia fovealis Zeller (Lepidoptera: Crambidae), a New Strawberry Pest in Brazil under Laboratory Conditions

Abstract

The strawberry caterpillar, Duponchelia fovealis Zeller (Lepidoptera: Crambidae) was recently found in Brazil causing significant losses for this crop. Because it is a recent pest in the country, still, there is no record of insecticides for its control. Thus, this work evaluated the toxicity of different commercial insecticides on D. fovealis second instar caterpillars. The insecticides tested were: acetamiprid, cyromazine, thiamethoxam + lambda-cyhalothrin, milbemectin, chlorantraniliprole, lambda-cyhalothrin, thiamethoxam, fenpropathrin, alpha-cypermethrin, chlorfenapyr, indoxacarb, and lambda-cyhalothrin + chlorantraniliprole. The application was carried out by spraying the caterpillars in a Potter tower. Insecticides indoxacarb, lambda-cyhalothrin + chlorantraniliprole and chlorfenapyr provided mortality data of D. fovealis caterpillars from 70.9 to 100%, and could be considered as promising for the management of this pest, once duly registered with the Ministry of Agriculture, Livestock and Supply (MAPA).

Estudo De Uma Área Sombreada E Fragmentada De Serapilheira No Campus Ondina Da Universidade Federal Da Bahia, Salvador, Bahia

“…Esta praga pode ocorrer em vários estágios da cultura, desde as mudas recém-plantadas até na fase final de produção dos morangos, destacando o broqueamento do caule das plantas como principal dano (Zawadneak et al, 2022). O controle é adotado em caráter emergencial com acetamipride, clorfenapir, indoxacarb e, principalmente, a combinação de lambda-cialotrina e clorantraniliprole (Santos et al, 2019). No entanto, a maioria desses inseticidas possui ingredientes ativos que não foram registrados no Brasil para uso no morangueiro ou no manejo de D. fovealis (Agrofit, 2022).…”

Sexual dimorphism, diagnosis and damage caused by Duponchelia fovealis (Lepidoptera: Crambidae)

“…Esta especie es originaria de la zona del Mediterráneo e Islas Canarias y desde 2015 se distribuyó rápidamente por las áreas templadas de otros continentes y consiguió establecerse exitosamente en África, América y Asia (Brambila & Stocks, 2010;Zawadneak et al, 2016;Amatuzzi et al, 2018;Baja et al, 2020). Duponchelia fovealis puede alimentarse de más de 70 hospedantes, los cuales pertenecen a 40 familias botánicas (da Costa Stuart et al, 2020), incluidos cultivos agrícolas y ornamentales, con particular relevancia económica en plantaciones de fresa (Fragaria x ananassa Duchensne ex Rozier) (Lee et al, 2018;Molnár et al, 2018;de Menezes et al, 2019;Pinto-Zevallos et al, 2020), afectando la producción, calidad y por ende la comercialización del producto (Santos et al, 2019).…”